Optical system for printing normal and panoramic images
US5486895A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1994 |
| Grant date | Jan 23, 1996 |
| Priority date | — |
| Expiry date | Apr 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2206/006
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An automatic printer for making prints of normal and panoramic format negative filmstrip image frames arbitrarily interspersed in a single filmstrip. Normal and panoramic projection systems are provided for projecting normal and panoramic images onto respective projection planes of the photographic print paper. Normal and panoramic format image frames are distinguished, and the appropriate projection system is employed through the insertion or withdrawal of a first reflective mirror into the projection path of the image bearing light beam. Zoom lens systems in each projection system are set to the appropriate magnifications for the width of print paper employed. The panoramic projection system employs a precision variable conjugate controlled zoom lens in association with a second movable mirror to adjust object plane to image plane distance to avoid overlap of the normal and panoramic projection planes at each magnification for each paper width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.